geographic area vs Transcaucasia

geographic area and Transcaucasia both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographic area	Yes	No	No	No
Transcaucasia	Yes	No	No	No

geographic area (noun)	Transcaucasia (noun)
a demarcated area of the Earth	a geographical region to the south of the Caucasus Mountains and to the north of Turkey that comprises Georgia and Armenia and Azerbaijan